PCA9555DWG4 Overview
As far as the I/Os are concerned, it is programmed with 16.Packaging includes the device and the SOIC.As a matter of fact, it is available in the Tube case as well.Voting is done within 2.3 V ~ 5.5 V hours after the order is placed.Surface Mount mounting is the type of mounting that is recommended for it.Devices work when their operating temperature falls within a certain range, called -40°C ~ 85°C.For the performance of the output frequency, it works at 400kHz.There are 24 terminations in the fabric as a whole.It is estimated that the part has 24 pins in total.There is voltage present at 3V as a result of the device.In order to run 260, we use the peak reflow temperature of this part.2 ports are available on the device in total.Depending on what family of PCA9555 the part belongs to, you might be able to find related parts.16 is the total number of bits on an IC chip.24 pins are present on the device.The chip conducts when the voltage supplied to it is 5.5V.A PARALLEL IO PORT, GENERAL PURPOSE uPs/uCs/Peripheral ICs belong to the class PARALLEL IO PORT, GENERAL PURPOSE uPs/uCs/Peripheral ICs.Upon reaching 85°C, the maximum operating temperature is reached.-40°C must be the minimum working temperature for this device.There is a maximum frequency of 400kHz for this chip.A frequency of 400kHz is an ideal frequency at which it can perform effectively.The 2 outputs are available for use.
PCA9555DWG4 Features

PCA9555DWG4 Applications
There are a lot of Texas Instruments
PCA9555DWG4 I/O Expanders applications.

IDEN, PHS, GSM Basestations
Repeaters, Radio Links, and Modems
Wireless Telemetry
JTRS
802.11x Receivers
IDEN
PHS
TD-SCDMA
CDMA2000
WCDMA

Package / Case	SOIC
Surface Mount	YES
Mounting Type	Surface Mount
Number of Pins	24
Supplier Device Package	24-SOIC
Weight	624.398247mg
Operating Temperature	-40°C ~ 85°C
Series	--
Packaging	Tube
JESD-609 Code	e4
Part Status	Active
Moisture Sensitivity Level (MSL)	1 (Unlimited)
Number of Terminations	24
ECCN Code	EAR99
Terminal Finish	Nickel/Palladium/Gold (Ni/Pd/Au)
Max Operating Temperature	85°C
Min Operating Temperature	-40°C
Voltage - Supply	2.3 V ~ 5.5 V
Terminal Position	DUAL
Terminal Form	GULL WING
Peak Reflow Temperature (Cel)	260
Supply Voltage	3V
Frequency	400kHz
Time@Peak Reflow Temperature-Max (s)	NOT SPECIFIED
Base Part Number	PCA9555
Pin Count	24
Number of Outputs	2
Qualification Status	Not Qualified
Output Type	Push-Pull
Operating Supply Voltage	5.5V
Temperature Grade	INDUSTRIAL
Interface	I²C, SMBus
Number of I/O	16
Number of Ports	2
uPs/uCs/Peripheral ICs Type	PARALLEL IO PORT, GENERAL PURPOSE
Number of Bits	16
Clock Frequency	400kHz
Frequency (Max)	400kHz
Interrupt Output	Yes
Current - Output Source/Sink	10mA, 25mA
Features	POR
Length	15.4mm
Width	7.5mm
RoHS Status	RoHS Compliant
Lead Free	Lead Free